The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 1992
Filed:
Apr. 18, 1990
Applicant:
Inventors:
Thomas A Mitchell, Mentor, OH (US);
John E Bennett, Painesville, OH (US);
Assignee:
Eltech Systems Corporation, Boca Raton, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01Y / ; G01R / ;
U.S. Cl.
CPC ...
324559 ;
Abstract
A method for detecting exposed steel in the surface of reinforced concrete, comprising the steps of: moving an electrode across an exposed surface of said concrete; connecting said electrode to one terminal of a power source; connecting the other terminal of said power source to the reinforcement of said concrete; said power source providing a high voltage current effective to produce a spark across an air gap occurring when exposed steel is detected, said spark initiating a means to signal the occurrence of said exposed steel.